Power Supply Caddy for the Cooler Master Q300L case. You will need M3 Screws/Nuts to mount onto the case. NOTE - This does seem sturdy enough to hold the power supply at the top of the case but I set up the case to have the power supply at the bottom of the case.

I have now added a v2 that seems a bit more robust (I still recommend having the PSU on the bottom) and can have heat inserts pressed in to make install a bit easier. you will need 3 M3 heat (5mm in length) and matching m3 screws.

Part that uses heat inserts can be printed without supports but the part without the heat inserts will need supports. I printed with a .6mm nozzle and in PLA (though PETG may be a better choice due to heat inside of the computer case)